Cooling system



Jan. 8, 1935.

L. E. SMlTLEY El AL COOLING SYSTEM Filed Jan. 3, 1954 R ii 3 SheetsSheet 1 gmms LesZieESmifley Frank ,S'Jllaore Jan. 8, 1935. L. E. SMITLEY in. 7 1,987,521

COOLING SYSTEM Filed Jan. 3, 1934 S Sheets-Sheet 2 32 4a 42 4 LesZieE ,s'mifie Frank ,SiMaore Jan. 8, 1935. L. E. SMITLIEY ET AL COOLING SYSTEM Filed Jan. 5, 1934 3 Sheets-Sheet 3 3mm: Leslie E. smitley Frank 8.171001%? Patented Jan. s, 1935 PATEN T OFFICE COOLING SYSTEM Leslie E. Smitley and Frank S. Moore, Los Angeles, Calif.

Application January 3,

4 Claims.

This invention relates to a cooling system designed primarily for use in connection with railway rolling stock, such as passenger, parlor, sleeping, club, dining, mail and express cars, as well as stream-line trains, but it is to be understood that a cooling system in accordance with this invention, may be employed in any connection for which it may be found applicable, and the invention has for its object to provide, in a manner as hereinafter set forth, a cooling system including as a part thereof a controllable combined air cooling and cooled air distributing means for positioning within the car or train to reduce the temperature in the latter. The air fed to, cooled by and distributed from the said means is supplied from a source of compressed air storage carried by the car or train. The source is created by an air compressing means, the latter as well as the drive therefor being carried by the car or train.

A further object of the invention is to provide, in a manner as hereinafter set forth, a cooling system for the purpose set forth including air compressing means and an air cooling structure communicating with and located adjacent to the said other means and positioned within the space to be cooled. The said air cooling structure is constructed in a manner and arranged to discharge the air cooled thereby into the space to be cooled, and with the discharge from said element being controlled.

Further objects of the invention are to provide, in a manner as hereinafter set forth, a cooling system for the purpose referred to, which is simple in its construction and arrangement, readily installed with respect to a car of a railway train of the form now in general use or a stream-line railway train now employed by several of the railway lines, strong, durable, conveniently controlled and comparatively inexpensive to set up.

To the above end essentially, and to others which may hereinafter appear, the invention consists of such parts, and such combination of parts which fall within the scope of the invention as claimed.

In the drawings:

Figure 1 is a diagrammatical view showing the adaptation of the system with a passenger car of a railway train of the type now in general use.

Figure 2 is a vertical sectional view of a combined air cooling and distributing element.

Figure 3 is a view similar to Figure 2 of a modifled form of a combined air cooling and distributing element.

1934, Serial No. 705,114 (Cl. 62-24) Figure 4 is. an inverted plan of the element shown in Figure 2.

Figure 5 is a view similar to ment shown in Figure 3.

Figure 6 is a diagrammatical view showing a 5 modified form of system and the adaptation of the latter with respect to a railway train of the stream-line type.

The railway car as shown in Figure 1 is of the passenger type, generally termed a coach, but it is to be understood that the system may be readily installed with respect to a railway car of the Pullman type or other types. The car indicated at 1, Figure l, is shown by way of example for the purpose of illustrating the adaptation of one form of cooling system in accordance with this invention. It is to be understood that if the railway car is of that type having one or more compartments or one or more drawing rooms, that each compartment or drawing room, as is shown in Figure 6, will be provided with a combined air cooling and distributing element which forms a part of the system.

With reference to Figure 1, the interior of car 1 is shown as provided with spaced air cooling and cooled air discharging elements 2, each mounted on the lower end of a depending pipe 3 provided with a manually controlled valve 4. The controlling means for each valve 4 is designated 5. Carried by the floor 6 of car 1 and depending therefrom is a supporting structure 7 for an air compressor 8 having an outlet pipe 9 opening into a compressed air storage tank 10 which is anchored with the floor 6 and provided with a relief valve 11. The compressor 8 is driven 85 by an eccentric 12 operated from one of the axles 13 of car 1. Extended from tank 10 is a compressed air conducting line 14 which opens into and is common to the pipes 3. As shown, one of the stretches of the line, indicated at 15 is arranged within the roof 16 of car 1, another stretch which is designated 17 is positioned at one of the ends 18 of car 1 and the remaining stretch indicated at l9'ispositioned below floor 6 and opens into the compressor 8. The wheels of car 1 are designated 20.

With reference to Figures 2 and 4, the combined air cooling and cooled air distributing element 2 consists of an upstanding tubular shell 21 closed at-its upper end by a flanged cover or cap member 22, provided with an axially arranged opening 23 and an upstanding annular boss 24 forming a continuation of opening 23. The flange of cover 22 is indicated at 25 and snugly engages the outer periphery of shell 21. Arranged within Figure 4 of the eleand adjacent the lower end of shell 21 is a partition 26 which is fixed to and abuts the inner face of the shell. The partition 26 is formed with an axially arranged opening 2'7 and a depending annular boss 28 forming a continuation of the opening 27. Secured against the bottom of shell 21 is a flanged cap member 29 formed with radially disposed tapered slots 30, each of greater area than that of the openings 23 and 27. The flange of member 29 is indicated at 31 and is snugly secured to the outer periphery of shell 21. The latter in connection with partition 26 and cap member 29 provides a cooled air receiving chamber 32 having its outlet provided by the slots 30. The intake for chamber 32 is at the opening 27. Supported from member 29, centrally of the latter, as well as depending therefrom, is an electrically driven fan 33 having suitably controlled electrical connections, not shown, to provide for the operation thereof when desired. The partition 26 in connection with shell 21 and cover 22 provides a compartment 34 for a refrigerant 35, such as dry ice.

Each pipe 3 consists of a straight stretch 36 and a coiled stretch 3'7 having a downturned lower end 38. The upper coil of the stretch 3''! forms a continuation of the lower end of stretch 36. The latter extends through the opening 23 and into the chamber 34. The downturned lower end 38 of stretch" 36 is arranged in opening 27 and boss 28. The coiled stretch 37 and the lower end of the stretch 36 of pipe 3 are embedded in the refrigerant 35. The stretch 3'7 has its coils of less diameter than that of shell 21 and is arranged in concentric spaced relation to the latter. The compressed air supplied to the stretch 2'7 is cooled by the refrigerant and delivered to chamber 31. The air discharged from the latter is taken up and distributed by the fan 33.

The modified form of air cooling and cooled air discharging element shown by Figures 3 and 5 is generally indicated at 39, and is of the same construction as the element 2, with the exception that the fan 33 is not employed therewith and that the cap member 40 at the lower end of shell 41 is of a different form from that of member 29. In lieu of forming member 40 with radially disposed tapered slcts, it is provided with an axially arranged opening 42 and a series of spaced concentrically arranged circular rows of spaced openings 43. Otherwise than that as stated the construction of element 39 will be the same as element 2. The coiled stretch 27 of pipe 3 is arranged relatively to element 39 in the same manner as that shown with respect to element 2.

Figure 6 illustrates a train of the stream-line type which is indicated at 44. As shown, train 44 is provided with compartments'or drawing rooms 45 and with a large compartment 46 for a number of passengers. An engine room is designated 47 and within the same is the driving motor 48, an aircompressor 49 operated from motor'48, a compressed air storage tank 50, a feed line 51 leading from compressor 48 to tank 50 and a service line 51 which is common to a series of valve controlled pipes 52 carrying combined air cooling and. cooled air distributing elements 53. As show an element 53 is arranged in each compartment or drawing room 45 and a series of elements 53 are positioned in compartment 46. The service line 51 includes a vertical stretch 54 extending upwardly from tank 50 and terminating in a stretch55 disposed lengthwise of the roof of the train. The pipes 52 depend from stretch 55 and are of the same form as the pipes 3. The elements 53 may be of the same form as elements 2 or 39. The valves of pipes 52 are controlled in the same manner as the valves of the pipes 3.

What we claim is:-:-

1. In a cooling system for the interior of a mobile body, a compressed air storage source adapted to be carried by said body, means adapted to be supported by said body for supplying compressed air to said source, a compressed air conducting line leading from said source and having a stretch thereof arranged within said body at the top of the latter, spaced pipes permanently communicating with and depending from said stretch, independently operable compressed air discharge controlling valve structures anchored to said pipes, an upstanding closed top receptacle suspended from each of said structures and containing a refrigerant and formed at its lower portion with a cold air receiving chamber provided with an outlet, the said refrigerant being arranged over said chamber, and a discharge pipe for cooled compressed air within and extended from the upper end of each of said receptacles to and opening into one of said structures, said discharge pipe opening into said receiving chamber and embedded in said refrigerant.

2. In a cooling system for the interior of a mobile body, a compressed air storage source adapted to be carried by said body, means adapted to be supported by said body for supplying compressed air to said source, a compressed air conducting line I leading from said source and having a stretch thereof arranged within said body at the top of the latter, spaced pipes permanently communicating with and depending from said stretch, independently operable compressed air discharge controlling valve structures anchored to said pipes, an upstanding closed top receptacle suspended from each of said structures and containing a refrigerant and formed at its lower portion with a cold air receiving chamber provided with an outlet, the said refrigerant being arranged over said chamber, a discharge pipe for cooled compressed air formed of an upstanding upper part, a depending lower part and a coiled part between the said other parts, said discharge pipe being embedded in said refrigerant and having its upper part extending up through the top of a receptacle and opening into one of said structures, and said lower part opening into said chamber.

3. In a cooling system for the interior of a mobile body, a compressed air storage source adapted to be carried by said body, means adapted to be supported by said body for supplying com pressed air to said source, a compressed air conducting line leading from said source and having a stretch thereof arranged within said body at the top of the latter, spaced pipes permanently communicating with and depending from said stretch, independently operable compressed air discharge controlling valve structures anchored to said pipes, an upstanding closed top receptacle suspended from each of said structures and containing a refrigerant and formed at its lower portion with a cold air receiving chamber provided with an outlet, the said refrigerant being arranged over said chamber, a discharge pipe for cooled compressed air within and extended from the upper end of each of said receptacles to and opening into one of said structures, said discharge pipe opening into said receiving chamber and embedded in said refrigerant, and a horizontally revoluble cooled air distributing fan positioned below said chamber for the passage of cooled air from the latter upon the top surface of the fan.

4. In a cooling system for the interior of a mobile body, a compressed air storage source adapted to be carried by said body means adapted to be supported by said body for supplying compressed air to said source, a compressed air conducting line leading from said source and having a stretch thereof arranged within said body at the top of the latter, spaced pipes permanently communicating with and depending from said stretch, independently operable compressed air discharge controlling valve structures anchored to said pipes, an upstanding closed top receptacle suspended from each of said structures and containing a refrigerant and formed at its lower portion with a cold air receiving chamber provided with an outlet, the said refrigerant being arranged over said chamber, a discharge pipe for cooled compressed air formed of an upstanding upper part, a dependinglower part and a coiled part between the said other parts, said discharge pipe being embedded in said refrigerant and having its upper part extending up through the top of a receptacle and opening into one of said structures, said lower part opening into said chamber,

and a horizontally revoluble cooled air distributing fan positioned below said chamber for the passage of cooled air from the latter upon the top surface of the fan.

- LESLIE E. SMITLEY.

. FRANK S. MOORE. 

